Lubricator for car-axle bearings.



Patented Oct. 7, |902.

L. L. LOGAN.

LUBRICATUR FOB CAR AXLE BEARINGS.

(Application filed Dec. 31, 1901.)

(No Model.)

27a/629%?? lm/aleell we @WM @imm UNITED STATES PATENT OFFICE.

LAVALETTE L. LOGAN, OF ROBERTSDALE, PENNSYLVANIA.

LUBRICATOR FOR CAR-AXLE BEARINGS.

SPECIFICATION forming' part of Letters Patent N 0. 710,481, dated Octoloei` 7, 1902.

Application filed December 3l, 1901. Serial No. 87,903. (No model.)

.To (L7/Z whom, tm/(ty concern:

Be it known that I, LAVALETTE L. LOGAN, a citizen of the United States, residing at Robertsdale, in the county of Huntingdon and State of Pennsylvania, have invented new and useful Improvements in Lubricators for Oar-Axle Bearings, of Which the following is a specification.

Myinvention relates to lubricators for axlebearings, designed particularly for use upon mine-cars, which are adapted to be tilted longitudinally on the front and rear wheels for the purpose of dumping the car.

The object of the invention is to provide novel means for automatically lubricating the axle-bearing after each operation of tilting and dumping the car.

Other objects and advantages of the invention will hereinafter appear, and the novel features thereof will be set forth in the claims.

In the drawings forming part ot" this specification, Figure 1 is a plan vieWrof a car-axle box embodying my improvements. Fig. 2is a longitudinal section of the same on the line 2 2 of Fig. 1, and Fig. 3 is a cross-section on the line 8 3 of Fig. 1.

Like reference-numerals indicate like parts in the diderent views.

In carrying out my invention I employ bearing-boxes 1, secured to the under side of the car, one for each end of each axle 2. Each of said bearing-boxes is provided with an oilreceptacle 3 beneath and on opposite sides of the axle 2 and With a supplemental oilreceptacle 4, communicating with the receptacle The oil-receptacle 4 is preferably horizontally disposed and is located with the bottom Wall thereof in a plane slightly above the center of the axle 2. The outer end of the supplemental receptacle 4 is closed by a screw-plug 5, which is adapted to be removed from time to time for the purpose of cleaning said supplementalreceptacle. The main oilreceptacle 3 is providedrwith an inclined Wall 6, which leads up to the supplemental receptacle 4 and terminates at a point above the bottom of the supplemental receptacle 4,form ing a ledge or partition 7. The said partition 7 has its plane face extending transversely of the car substantially parallel with the axle 2, and its central portion has a horizontal extension S thereon through which leads a passage 9, which extends through the upper bearing part lO of the box l and communicates with the exterior surface of the axle 2 above its center.

In the operation of my improved device the oil-receptacle 3 is filled with oil or other lubricating material up to the proper point, while the supplemental oil-receptacle 4 is left empty. 1When the car is tilted longitudinally for the purpose of dumping the contents thereof, the oil in the receptacle 3 oWs back along the inclined Wall 6 thereof into the supplemental receptacle 4. Then the car is returned to its normal horizontal position, the oil which during the previous operation of the car flowed into the supplemental receptacle 4 passes therefrom through the passage 9 in the horizontal extension 10 to the upper side of the axle 2. The said axle 2 is thus supplied with lubricating material during cach tilting and dumping operation of the car. Should Vthe axle 2 become separated from the bearing-surface of the box in Which it is mounted, the oil from the supplemental receptacle 4 and passagef) Would merely pass from said passage back into the receptacle 3.

To fill the receptacle 3, I provide an opening 11 near one end of the box 1, which leads into said receptacle, the said opening having connected with it a filling-pipe 12, Which extends out Within reach and is adapted to be closed by a cap or plug, as shown.

To protect the axle 2 and to prevent the entrance of dust or other foreign substance into the oil-receptacle 3 around said axle 2 where the same passes through the opposite sides of the bearing-boxes 1, I provide the guards 13. These guards are in the form of plates Which lie in close contact With the opposite sides of the box l and are provided with two openings-enea large one, through which the axle 2 passes and which closely fits the same, and the other a small one, through Which the pivot-bolt 14 passes. The said bolt 14 is smaller in diameter than the openings in the guards 13 through which it passes, and the same extends through the oil-receptacle 3 parallel to the axle 1. The threaded end of the bolt 14 has a nut 15 thereon, between which and the adjacent guard 13 is interposed a spring-washer 16, designed for the purpose of maintaining said guards 13 in IOO close frictional Contact with the opposite sides of the box l.

Each of the bearing-boxes may be secured to the under side of the car in any suitable manner. I have, however, shown the same connected to said car by means of bolts-two at one end and one at the other end.

From the foregoing description it will be noted that by locating the main oil-receptacle 3 below the axle and the discharge end of the passage 9 above the axle and above the receptacle 3 any excess of oil supplied to the bearing will fall back into said receptacle 3. Waste of oil is thereby eectually avoided, as the same may be used over and over again.

Having now described myinvention, what I claim as new, and desire to secure by Letters Patent, is

l. A lubricator for car-axle bearings comprising a main oil-receptacle beneath the axle, a supplemental oil-receptacle above the plane of the axle and communicating therewith, and an inclined Wall, the uppei part of which forms a partition between the main and supplemental oil-receptacles.

2. A lubricator for car-axle bearings ioomprising a main oil-receptacle beneath the axle, an inclined Wall leading up to and forming one of the Walls of a supplemental receptacle, and an extension on the upper part of said inclined Wall having a passage communicating with said supplemental receptacle and the axle.

3. In a lubricator for car-axle bearings, a bearing-box through which the axle passes having an oil-receptacle therein beneath the axle, a supplemental receptacle above the plane of the axle, and communicating with the main oil-receptacle, an inclined wall, the upper extremity of which forms a partition between the main and supplemental receptacles, and an extension on said partition having a passage therethrough communicating With the supplemental receptacle and the axle.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

LAVALETTE L. LOGAN.

Vitnesses:

P. S. READ, CHAs. T. Gnins'r. 

